CN2546144Y - Variable speed spanner - Google Patents
Variable speed spanner Download PDFInfo
- Publication number
- CN2546144Y CN2546144Y CN 02267643 CN02267643U CN2546144Y CN 2546144 Y CN2546144 Y CN 2546144Y CN 02267643 CN02267643 CN 02267643 CN 02267643 U CN02267643 U CN 02267643U CN 2546144 Y CN2546144 Y CN 2546144Y
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- China
- Prior art keywords
- gear
- output shaft
- duplicate gear
- housing
- duplicate
- Prior art date
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Abstract
Disclosed is a speed shift wrench, comprising a shell, an input shaft, an output shaft, an idler wheel, a head cover and a handle, wherein one end of the input shaft is arranged to be a square toe and is actively connected with the handle and the other end is provided with external teeth; the input shaft is disposed in a through hole on the end cap at one end of the shell; the idler wheel is a duplicate gear which is made of set of internal teeth and external teeth that are meshed with each other; one end of the output shaft is provided with internal teeth gear that is meshed with the external teeth of the duplicate gear, the other end of the output shaft is provided with a square toe; the output shaft is disposed in a through hole on the end cap at the other end of the shell; the square toe of the output shaft is actively connected with the head cover. The speed shift wrench of the utility model adopts the duplicate gear to transmit, making the gear shift mechanism compact in structure, simple and convenient to use.
Description
Technical field
The utility model relates to a kind of spanner, especially a kind of spanner of gear graduation transmission.
Background technology
Many gear-driven reinforcement spanners and gear-driven booster are arranged in the prior art, and its gear drive part all adopts planetary gearsets.As utility model patent: transmission booster (patent No. 91230957, patentee: Bian Zhengmo, Granted publication day: on January 20th, 93), this transmission booster comprises the planetary gear differential transmission mechanism, ratchet spanner, bracing frame, joint and sleeve, the outer peripheral face of the underpart of planetary gear differential transmission mechanism is provided with axial teeth groove, the bottom of pinion stand is provided with axial cubic hole, bracing frame is made up of lasso and fagging, lasso be provided with body on the axial internal tooth of teeth groove coupling, fagging is wing shape, integrally is placed in lasso outer peripheral face top or bottom.Also have other various spanners such as electric wrench, hydraulic spanner, pneumatic impact wrench etc. in addition, these spanners are heavy, and need connect power source in addition, both made the spanner that is to use the planetary gear transmission also exist the weakness of the unidirectional transmission of power, and planetary gear has increased the transmission device radial dimension, and is also higher relatively to requirement on machining accuracy in addition.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, and is easy to use, processing is easy and can realize two-way powerdriven Variable speed spanner.The structure of Variable speed spanner comprises housing, power shaft, output shaft, idler gear and pullover and handle, power shaft one end and handle flexibly connect, other end design has external tooth, power shaft places the through hole of housing one end end cap, idler gear is a duplicate gear, duplicate gear is made of reference diameter bigger internal-gear and the less external tooth gear of reference diameter, external tooth on the power shaft and the engagement of the internal tooth of duplicate gear, idler gear is made up of the duplicate gear of one group of internal tooth and external tooth engagement, output shaft one end is an internal-gear, the external tooth engagement of it and duplicate gear group one end.Output shaft places the through hole on the housing other end end cap, the output shaft other end and pullover flexible connection.
Thereby changing moment, the transmission of Variable speed spanner described in the utility model by one group of duplicate gear reach the purpose of reinforcement, adopt the duplicate gear transmission to make the gear compact conformation simultaneously, dwindled volume, easy to carry, and can oppositely use to reach the speedup purpose, easy to use, simple and easy.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the schematic diagram of the utility model power shaft.
Fig. 3 is the schematic diagram of the utility model duplicate gear.
Fig. 4 is the schematic diagram of the utility model output shaft.
The specific embodiment
In the embodiment shown in fig. 1, the utility model comprises housing 3, power shaft 2, output shaft 5, idler gear and pullover 6 and handle 1, and power shaft 2 one ends are that square toes can flexibly connect with handle 1, and other end design has external tooth (as shown in Figure 2).Power shaft passes through hole on the housing one end end cap and spacing by through hole.Idler gear is one group of three duplicate gear, and duplicate gear is two gears (as shown in Figure 3) of coaxial one, and wherein the reference diameter of internal-gear is bigger, and the reference diameter of external tooth gear is less.Three duplicate gears 4 are arranged the internal tooth engagement of external tooth gear and next duplicate gear of each duplicate gear 4 in the same way.The internal-gear engagement of the external tooth of power shaft 2 and gear train one end.Output shaft 5 structures are similar to duplicate gear, the external tooth of the internal tooth of output shaft and duplicate gear group one end engagement, but external tooth gear is changed the solid shafting (as shown in Figure 4) of making to have square toes, and solid shafting passes that the through hole on the other end end cap is connected with pullover on the housing 3.Housing 3 inner chambers are the eccentric cavity that adapts to duplicate gear 4, and housing 3 is slidingly matched with duplicate gear 4.For being convenient to make, housing is made and duplicate gear and the identical split of output shaft quantity, and is with bolt that each several part is fixedly connected then.Can in certain limit, increase and decrease the number of duplicate gear like this, to adapt to the requirement of various working environments.
Power shaft of the present utility model, output shaft can exchange, and the power shaft when reinforcement uses has become output shaft when speedup, and output shaft has become power shaft.
In addition, duplicate gear also can not rely on the housing of eccentric cavity to locate, and adopts bent axle to come the position of relative fixed duplicate gear.
The gear of this wrench also can be used for the gear of other machinery tools such as screwdriver.
Claims (4)
1, a kind of Variable speed spanner, it is characterized in that: it comprises housing (3), power shaft (2), output shaft (5), idler gear and pullover (6) and handle (1), power shaft (2) one ends are that square toes and handle (1) flexibly connect, other end design has external tooth, power shaft (2) places the through hole of housing (3) one end end caps, idler gear is duplicate gear (4), duplicate gear (4) is made of reference diameter bigger internal-gear and the less external tooth gear of reference diameter, the internal tooth engagement of external tooth on the power shaft (2) and duplicate gear (4), idler gear is made up of the duplicate gear of one group of internal tooth and external tooth engagement, output shaft (5) one ends are internal-gear, the external tooth engagement of it and duplicate gear group one end, output shaft (5) places the through hole on housing (3) other end end cap, and output shaft (5) other end and pullover (6) flexibly connect.
2, Variable speed spanner as claimed in claim 1, its spy is characterised in that: have one to keep the duplicate gear relative position that eccentric shaft is arranged in housing (3) inner chamber.
3, Variable speed spanner as claimed in claim 1 is characterized in that: housing (3) inner chamber is the eccentric cavity that adapts with duplicate gear (4) position, and housing (3) is slidingly matched with duplicate gear (4).
4, as claim 2 or 3 described Variable speed spanners, it is characterized in that: housing (3) is made and duplicate gear and the identical split of output shaft quantity, and each split is fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267643 CN2546144Y (en) | 2002-06-11 | 2002-06-11 | Variable speed spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267643 CN2546144Y (en) | 2002-06-11 | 2002-06-11 | Variable speed spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2546144Y true CN2546144Y (en) | 2003-04-23 |
Family
ID=33733202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02267643 Expired - Fee Related CN2546144Y (en) | 2002-06-11 | 2002-06-11 | Variable speed spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2546144Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354071C (en) * | 2005-06-15 | 2007-12-12 | 上虞市东方铜业工贸有限公司 | Safety special spanner for electric tool |
-
2002
- 2002-06-11 CN CN 02267643 patent/CN2546144Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354071C (en) * | 2005-06-15 | 2007-12-12 | 上虞市东方铜业工贸有限公司 | Safety special spanner for electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |